Security-bolt for vehicle wheel-tires.



J. D. ROWLAND. SECURITY BOLT FOR VEHICLE WHEEL TIRES. APPLICATION FILED SEPT. 12, 1910.

1 ,0011891 Patented Aug. 29, 1911.

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Marx/ /l f07F JOHN DAVID ROWLAND, F BIRMINGHAM, ENGLAND.

SECURITY-BOLT FOR VEHICLE WHEEL-TIRES.

Specification of Letters Patent.' Application filed September 12,1910.

' Patented Au 29, 1911. Serial No. 551,525.

To all whom it may concern;

Be it known that I, JOHN DAVID Row- LAND, subject of the King of Great Britain, residing at lVa-tery Laue, Birmingham, England, have invented new'and useful Improvements Relating to Security-Bolts for Vehicle \Vheel-Tircs, of which the followiug is a-specification.

. bined nut and cover I .35

" nut- Z), thelatter being per side to receive the This .im ention relates to the security bolts employed, more especially, with the pneumatic tires of motor road vehicle wheels, and has for 'its object. combined nut and bolts:

As is well known among users of motor vehicles, security, bolts of various lengths are employed with the tires andin consequence a cap or cover adapted for one bolt may be unsuitable, too short, for anotherbolt. To adopt a cap or cover of sutiicient length to inclose cover for use with. such ,the longest bolt employed would necessitate a cap of excessive length for the majority of bolts.

This invention comprises the use with an internally screwed portion or nut, of a telescopic tubular cap or'cover which can be adapted to suit iug lengths of bolts ordinarily met with in practice.

Referring to the accompanying. sheet-of explanatory drawings-;F1gure 1 is an elevation and Fig. 2 a vertical section of a comconstructed in accord ance with this invention. Figs. 3 to 6 inelusive show the elements employed.

The same reference lettersin' the different views indicate. the sameparts.

In carrying the invention into effect as shown, a'brass or other metal tube a is screwed or brazed at "one end into a wing formed with an internally screwed orother recess at its up tube. To the lower side of the nut is rotatably secured a'washer c which is attached by spinning over or spreading out a reduced portion at the lower end of the'nut as shown. On its under or inner side the metal adapted to receive a leather or other washer I M Copies of this parent may be obtained for five cents each, by

tofprovide an improved on account of its being.

any of the various projectvehicle wheel tires, V prising a nut, a washer rotatably attached washer is as, and for the same purpose as. heretofore. ,Into the upper open end of the tube a above referred to, another tube at having its outer end closed is inserted and secured against complete withdrawal by compress ing or turning in the outer end of the tube a to form a shoulder e which serves as an abutment for a shoulder f on the inner end of the tube d.

When the device is screwed into the place of the ordinary nut onto a security bolt, the projecting end of the bolt is inclosed and protected against dust and water. If the said end should be of greater length than can be accommodated by the unextended cover piece, the bolt causes the cover piece to extend (that is, the tube 03 to be pushed out relatively to the tube a) while it is being screwed into position. The dc vice is thus adapted to suit any of the lengths of projecting security bolt ends commonly met with in practice and overcomes the disadvantage of an inextensible cover piece without employing a cover piece the. length of which would be excessive for short or medium bolts In Figs. 1 and 2 the tube (Z is shown in the inner position. The dotted lines in Fig. 1 indicate an extended position of the said tube.

Having thus described my. invention, What I claim as new, and desire to secure by Letters Patent is .In caps or covers for the security bolts of the combination comto the nut, and a pair of tubular portions adapted to inclose without engaging-the projecting end of the bolt, one of the said portions being fixed to the nut and the other provide'd with a closed end and arranged to slide axially within the fixed portion, substantially as described.

In testimony whereof I have signed m name to this specification 1n the presence of two subscriblng witnesses.

JOHN DAVID ROWLAND.

Witnesses:

J OHNMORGAN, HARRY DAVIS.

addressing the Commissioner of Patents,

Washington, D. C. 

